Mine arms shall judge the people. — Literally, the peoples, including Israel and the heathen. The work of judgment thus, as ever, comes first; after it the isles (i.e., far-off countries), as representing the heathen, shall be converted, and trust the very Arm that smote them.
Related Commentaries of Isaiah 51:5
Isaiah 51:5
5 My righteousness is near; my salvation is gone forth, and mine arms shall judge the people; the isles shall wait upon me, and on mine arm shall they trust.